Ashley Tisdale and her boyfriend Christopher French stop by Sirius Radio Studios for promotional work on April 9 in New York City.

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Andrew Garfield seen cycling along the west side highway in New York City on April 9.

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Katy Perry gets camera shy and is clad head to toe in purple as she touches down at LAX on April 9.

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Paula Patton returns to her hotel after a visit to "Good Morning America" in New York City.

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Taylor Momsen wears a sexy leather outfit with knee high boots to film scenes for an Untitled Tomomi Itano Music Video on April 9.

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Julianne Moore and husband Bart Freundlich take a romantic stroll around the West Village in NYC on April 9.

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Mischa Barton shops at Sunset Plaza in Los Angeles, CA on April 8.

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Paula Abdul shopping on Robertson Blvd. with friends in Los Angeles, CA on April 8.

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Lindsay Lohan smiles outside the 'Late Show With David Letterman' in New York City on April 9.

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Actress Rumor Willis spotted wearing the U by Kotox Generation Know bracelet while playing with her dog in Beverly Hills.

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Emmy Rossum is all smiles in New York sporting the Henri Bendel Sutton Mini Bag.

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Elizabeth Olsen and her beau Boyd Holbrook spotted walking in Soho, New York City on April 8.

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Yoko Ono seen enjoying eating at 'Da Silvano' in New York City on April 8.

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Gordon Ramsey and daughter Holly at The Grove in Hollywood, CA on April 8.

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Jeremy Renner and Christian Bale filming scenes on the set of David O. Russell's movie at Christie's Diner in Lynn, Massachusetts on April 8.

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Holly Madison takes her baby girl Rainbow out for a stroll at The Grove in Los Angeles, CA on April 8.

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Amanda Bynes seen smoking a suspicious rolled cigarette in Times Square, New York City on April 8.

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Chris Hemsworth spends some quality time with his brother Luke in New York City on April 8

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Heidi Klum and Howie Mandel at Rockefeller Center Ballroom on April 8 in New York City.

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Jennifer Garner takes her daughters Violet and Seraphina shopping at the Farmers Market in Pacific Palisades, CA on April 7.

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This past weekend Mad Men star Jessica Paré celebrated the Season Six premiere of her hit show with an intimate gathering hosted by Los Angeles Confidential magazine with Samsung Galaxy at Seven Grand in Los Angeles. The actress donned a L'Wren Scott dress with Kimberly McDonald earrings and Sergio Rossi heels.

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Spice Girl Melanie Brown seen at the 'Today Show' in New York City on April 8.

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Heidi Klum arrives at the "Today" show studios on April 8 in New York City.

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Miranda Kerr takes her son Flynn to ROMP in West Hollywood, CA on April 8.

Marquee Dayclub season opening kicked off with the birthday celebrations of Sports Illustrated model Nina Agdal and Marquee co-founder and co-owner Jason Strauss.
Nina Agdal arrived causal in an Urban Outfitters white lace dress. She was joined by her friends in a cabana and danced carefree to the sounds of the EC Twins. She later joined them in the DJ booth and playfully posed for photos. To officially ring in her 21st birthday, the Marquee girls presented Nina a cake with a cute photo of her dog Stella. She exclaimed, "That's my dog!" as she bit off a corner of the cake.

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Yoko Ono is seen leaving a restaurant in a leather jacket in downtown New York City on April 8.

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Patrick Schwarzenegger works out with two other buddies wearing identical white shirts and black shorts on April 8.

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Usher and Justin Bieber's manager Scooter Braun sway to the music at the Sting and Dave Matthews concert in Atlanta during the NCAA Final Four tournament on April 8.

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Tom Cruise learns how to make small steamed buns with the chef at Din Tai Fung Dumpling House in Taipei, Taiwan, China on April 6.

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On April 7 Chris Hemsworth and wife Elsa Pataky shopping for a suit at Calvin Klein in Midtown New York City,

World Red Eye

On Sunday, the Nautica South Beach Triathlon took place for the 6th year, raising $422,626 for St. Jude Children's Research Hospital. Celebrities who part in the swim, bike and run included Colin Egglesfield, Greg Ellis, Jason Kennedy, James Marsden, Josh Hopkins, Geoff Stults, Parker Young, Cristian de la Fuente and Monique Coleman. Actress and Broadway signer Laura Bell Bundy and former Dancing with the Stars host Samantha Harris were also on hand for the event but stuck to stage duties, with Bundy singing the national anthem and Harris helping to present checks and medals.

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Tim McGraw and Taylor Swift attend the 48th Annual Academy of Country Music Awards at the MGM Grand Garden Arena on April 7 in Las Vegas, Nevada.

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Nicky Hilton enjoys the warm weather in New York City as she is seen walking around SoHo in a short floral print skirt on April 8.

Chris Brown shocked clubgoers on Saturday night when he gave a surprise performance at Hollywood's Playhouse nightclub, to celebrate owners Rob, Igor and Eli's birthdays

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A beaming Giuliana Rancic at The Naked Grape Wine's `Peel It Off to Give Back` event in Chicago this weekend

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Olivia Wilde walking her dog with a friend in New York City on April 8.

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Eva Longoria stopped by the "Today" show studios on April 8 in New York City.

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Jessica Alba and socialite Nicole Richie hanging out with friends on the beach in St. Barts on April 7.

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Kourtney Kardashian takes her kids Mason and Penelope to Cafe Marmalade in Calabasas, CA on April 7.

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Gerard Butler and Aaron Eckhart attend the 'Olympus Has Fallen' photocall at Hotel Bernini on April 5 in Rome, Italy.

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Andy Cohen catches some rays poolside in Miami, Florida on April 8.

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Jon Hamm and his long-time girlfriend Jennifer Westfeldt walk their dog in Los Feliz, California on April 7.